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IBM 40Y9535 1GB Kit (4x256MB) DDR-266MHz Micro-DIMM 2Rx8 CL2.5 Memory
- Total Capacity: 1GB (4 x 256MB modules)
- Form Factor: Micro-DIMM
- Memory Type: DDR-266MHz
- Configuration: 2Rx8 (Dual Rank, x8 Data Width)
- CAS Latency: CL2.5
- Designed for specific IBM systems
- Compact size for space-constrained devices
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Product Overview
The IBM 40Y9535 is a 1GB memory kit consisting of four 256MB Micro-DIMM modules. This DDR-266MHz memory is designed for specific IBM systems that utilize the compact Micro-DIMM form factor. It features a 2Rx8 configuration and CL2.5 latency, suitable for systems requiring small-form-factor memory upgrades.
Technical Information
| Memory Type | DDR SDRAM |
| Capacity | 1GB Kit (4 x 256MB) |
| Speed | 266MHz |
| Form Factor | Micro-DIMM |
Additional Specifications
| Rank | 2Rx8 |
| CAS Latency | CL2.5 |
| Manufacturer | IBM |
Product Description
The IBM 40Y9535 memory kit provides a total of 1GB of RAM, distributed across four 256MB Micro-DIMM modules. This specific form factor, Micro-DIMM, is significantly smaller than standard DIMMs and SO-DIMMs, making it suitable for highly compact computing devices such as certain IBM ThinkPads, subnotebooks, or specialized embedded systems where space is at a premium. The DDR-266MHz speed offers a foundational level of performance for systems of its era. Each module in the kit is configured as 2Rx8, indicating a dual-rank design with an x8 data width per rank. This configuration can influence how the memory controller accesses data, potentially offering benefits in specific system architectures. The CAS latency of CL2.5 specifies the timing for memory operations, representing a balance between responsiveness and the overall speed capabilities of DDR-266 technology. This kit is specifically designed and validated for compatibility with particular IBM systems that require Micro-DIMM memory. Using genuine IBM-branded memory ensures optimal performance and stability, as it has been tested to meet the stringent requirements of the intended hardware. It serves as a direct replacement or upgrade option for systems equipped with or supporting this specialized memory type.
